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; RUN: opt -S -jump-threading -verify -o - %s | FileCheck %s
@a = external global i16, align 1
; CHECK-LABEL: f
; CHECK: bb6:
; CHECK: bb2:
; CHECK: bb3:
; CHECK-NOT: bb0:
; CHECK-NOT: bb1:
; CHECK-NOT: bb4:
; CHECK-NOT: bb5:
define void @f(i32 %p1) {
bb0:
%0 = icmp eq i32 %p1, 0
br i1 undef, label %bb6, label %bb1
bb1:
br label %bb2
bb2:
%1 = phi i1 [ %0, %bb1 ], [ %2, %bb4 ]
%2 = and i1 %1, undef
br i1 %2, label %bb3, label %bb4
bb3:
store i16 undef, i16* @a, align 1
br label %bb4
bb4:
br i1 %0, label %bb2, label %bb5
bb5:
unreachable
bb6:
ret void
}
|
